These alloy brake drums are dimensionally the same as the stock "S" rear drum which means they have the built-in 1" spacer. The alloy material is also designed with fins which dissipate heat more quickly, which in turn helps reduce brake fade. While designed as a direct replacement for the "S" rear drums they will also fit the rear of any Mini or Sprite/Midget.
These aluminum alloy brake drums use 1.5" shoes if used with twin leading front brakes or 1.25" if used on the rear of all models. Use 21A1278 studs and SF604121 screws